Chemical vessel



FIG. 1 is a perspective view of the design;

FIG. 2 is a side elevational view of the design;

FIG. 3 is a top plan view of the design;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view of an alternative embodiment of the design;

FIG. 6 is a side elevational view of the alternative embodiment of FIG.5;

FIG. 7 is a side elevational view of the embodiment of FIG. 5 with thevessel rotated ninety degrees from the orientation shown in FIG. 5; and,

FIG. 8 is a top plan view of the embodiment of FIG. 5.

The bottom plan view of the embodiment of FIG. 5 is illustrated in FIG.4.

The broken line showing of the gripping ribs on the lower panels of thevessel shown in FIGS. 1, 2, 5, 6 and 7 are for illustrative purposesonly and forms no part of the claimed design.

The ornamental design for a chemical vessel, as shown and described.